I guess Trump isn't worth impeaching now

Its probably not worth the effort to impeach him over Russian collusion when Mitch will side with whatever excuse Trump comes up with. As long as Trump isn't calling a national emergency to build a useless wall then the horizon is looking pretty good even without impeachment. Better to vote him out as a measly one term president than to make him a martyr to his idiotic base. Voting is how you kick the basement dwelling mouthbreathers to the curb and prove they aren't as numerous as they pretend to be. Just like Captain Marvel showed with its box office results.

He's been impeached a million times over, people who support him don't care, as he said, he could shoot somebody dead and his supporters won't care.

Two things: Remember that Trump announced he could swing the votes to get Nancy in as Speaker. He likes her for some reason. Second, it would be blazingly stupid to start impeachment when they don't have the votes in the Senate.